WO2021007809A1 - Procédé, dispositif et système de rapport de qualité de canal - Google Patents

Procédé, dispositif et système de rapport de qualité de canal Download PDF

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Publication number
WO2021007809A1
WO2021007809A1 PCT/CN2019/096376 CN2019096376W WO2021007809A1 WO 2021007809 A1 WO2021007809 A1 WO 2021007809A1 CN 2019096376 W CN2019096376 W CN 2019096376W WO 2021007809 A1 WO2021007809 A1 WO 2021007809A1
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WO
WIPO (PCT)
Prior art keywords
index
repetitions
physical downlink
channel
field
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PCT/CN2019/096376
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English (en)
Chinese (zh)
Inventor
苏俞婉
金哲
Original Assignee
华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP19937915.7A priority Critical patent/EP3993297A4/fr
Priority to MX2022000622A priority patent/MX2022000622A/es
Priority to PCT/CN2019/096376 priority patent/WO2021007809A1/fr
Priority to CN201980098378.0A priority patent/CN114097187B/zh
Publication of WO2021007809A1 publication Critical patent/WO2021007809A1/fr
Priority to US17/576,602 priority patent/US20220141828A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025—Transmission of mode-switching indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0028—Formatting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • This application relates to the field of communications, and in particular to a method, device and system for reporting channel quality.
  • the network equipment determines the downlink scheduling strategy, and the network equipment is the sender, and it is not clear whether the quality of the downlink channel is good or bad. Therefore, the terminal equipment can The quality of the channel is measured, and the channel quality indication (CQI) is reported to the network device, so that the network device can determine an appropriate downlink scheduling strategy according to the CQI.
  • CQI channel quality indication
  • the CQI reported by terminal equipment is the number of repetitions of the virtual narrowband physical downlink control channel (NPDCCH).
  • the virtual NPDCCH is used for downlink channel quality measurement. The minimum value is 1, and the smaller the number of repetitions. The higher the channel quality. Generally, when the channel quality measured by the terminal device is average, the number of repetitions of the reported NPDCCH is greater than 1.
  • the network device can reasonably determine the number of repetitions and downlink channel repetitions and downlink channels based on the channel quality reflected by the number of repetitions reported by the terminal device. Scheduling strategies, such as determining the number of repetitions of the NPDCCH, the number of repetitions of the narrowband physical downlink shared channel (NPDSCH), the modulation and coding scheme (MCS) of the NPDSCH, and so on.
  • MCS modulation and coding scheme
  • the number of repetitions reported by the terminal device can still only be 1. At this time, the number of repetitions 1 does not completely accurately reflect whether the channel quality is good or very good. As a result, the network equipment cannot reasonably determine the downlink scheduling strategy based on the number of repetitions.
  • the embodiments of the present application provide a method, device, and system for reporting channel quality.
  • channel quality can be fed back more accurately;
  • the first field occupied by the repetition of the physical downlink control channel can be reused, thereby improving resources Utilization;
  • backward compatibility is guaranteed, so that the network device understands the content carried in the first field according to the instruction information, thereby avoiding ambiguity in the understanding of the first field by the network device.
  • a method for reporting channel quality and a corresponding communication device are provided.
  • the terminal device determines a first index corresponding to the channel quality, where the first index is an index in the corresponding index set when the repetition number of the physical downlink control channel and/or the physical downlink data channel is the first repetition number; the terminal The device sends the first index and indication information to the network device, the first index occupies the first field, the indication information indicates that the first field is occupied by the index corresponding to the first number of repetitions, and the first field can be used by the physical The number of repetitions of the downlink control channel or the index corresponding to the first number of repetitions is occupied, and the indication information can indicate that the first field is occupied by the number of repetitions of the physical downlink control channel or the index corresponding to the first number of repetitions.
  • the channel quality can be fed back more accurately, so that the network device can more reasonably determine
  • the scheduling strategy of the downlink transport block since the first index occupies the first field that can be occupied by the repetition times of the physical downlink control channel, the first field occupied by the repetition times of the physical downlink control channel can be reused, thereby increasing
  • the indication information can indicate that the first field is occupied by the repetition number of the physical downlink control channel or the index corresponding to the first repetition number, backward compatibility is ensured, so that the network device can understand according to the instruction information
  • the content carried by the first field can avoid ambiguity in the understanding of the first field by the network device.
  • the first index is used to indicate one or more of the following: the size of the data block carried by the physical downlink data channel, the index of the size of the data block carried by the physical downlink data channel, and the physical downlink data channel
  • the first index is a first modulation and coding strategy MCS index or a first channel quality indicator CQI index or a report value corresponding to the first MCS index or a report value corresponding to the first CQI index.
  • the first index is the first MCS index
  • the terminal device determines the first index corresponding to the channel quality, including: the terminal device determines the channel quality corresponding to the channel quality according to the channel quality, preset rules, and reference MCS index The first MCS index.
  • the preset rule includes dividing the reference MCS index by a first value and multiplying the reference MCS index by a second value, where the first value is a positive integer and the second value is greater than 1. A positive integer.
  • the reference MCS index is the MCS index corresponding to the random access response in the random access process, or the reference MCS index is the MCS index corresponding to the message 3Msg3 in the random access process.
  • the terminal device sends a first index and indication information to the network device, and the first index occupies the first field, including: the terminal device sends a first message to the network device, and the first message includes the first index And the indication information, the first index occupies the first field included in the first message.
  • the first message is the message 3Msg3 in the random access process.
  • the first number of repetitions is 1, and the index set includes multiple indexes.
  • the network device receives a first index and indication information from a terminal device, where the first index is one of the corresponding index sets when the repetition number of the physical downlink control channel and/or the physical downlink data channel is the first repetition number Index; the network device determines according to the indication information that the first field is occupied by the index corresponding to the first repetition count, and the network device determines that the index corresponding to the first repetition count is the first index, and the first field can be used by the The repetition number of the physical downlink control channel or the index corresponding to the first repetition number is occupied, and the indication information can indicate that the first field is occupied by the repetition number of the physical downlink control channel or the index corresponding to the first repetition number.
  • the technical effects brought about by the second aspect can be referred to the technical effects brought about by the above-mentioned first aspect, which will not be repeated here.
  • the first index is used to indicate one or more of the following: the size of the data block carried by the physical downlink data channel, the index of the size of the data block carried by the physical downlink data channel, and the physical downlink data channel
  • the first index is a first modulation and coding strategy MCS index or a first channel quality indicator CQI index or a report value corresponding to the first MCS index or a report value corresponding to the first CQI index.
  • the network device receiving the first index and the indication information from the terminal device includes: the network device receives the first message from the terminal device, the first message includes the first index and the indication information, the The first index occupies the first message including the first field.
  • the first message is the message 3Msg3 in the random access process.
  • the first number of repetitions is 1, and the index set includes multiple indexes.
  • a communication device for implementing the above-mentioned various methods.
  • the communication device may be the terminal device in the first aspect described above, or a device including the terminal device described above, or a device included in the terminal device described above; or, the communication device may be the network device in the second aspect described above, or include the above A device of a network device, or a device included in the aforementioned network device.
  • the communication device includes a module, unit, or means corresponding to the foregoing method, and the module, unit, or means can be implemented by hardware, software, or hardware execution of corresponding software.
  • the hardware or software includes one or more modules or units corresponding to the above-mentioned functions.
  • a communication device including: a processor and a memory; the memory is used to store computer instructions, and when the processor executes the instructions, the communication device executes the method described in any of the above aspects.
  • the communication device may be the terminal device in the first aspect described above, or a device including the terminal device described above, or a device included in the terminal device described above; or, the communication device may be the network device in the second aspect described above, or include the above A device of a network device, or a device included in the aforementioned network device.
  • a communication device including: a processor; the processor is configured to couple with a memory, and after reading an instruction in the memory, execute the method according to any of the foregoing aspects according to the instruction.
  • the communication device may be the terminal device in the first aspect described above, or a device including the terminal device described above, or a device included in the terminal device described above; or, the communication device may be the network device in the second aspect described above, or include the above A device of a network device, or a device included in the aforementioned network device.
  • a computer-readable storage medium stores instructions that, when run on a computer, enable the computer to execute the method described in any of the above aspects.
  • a computer program product containing instructions which when running on a computer, enables the computer to execute the method described in any of the above aspects.
  • a communication device for example, the communication device may be a chip or a chip system
  • the communication device includes a processor for implementing the functions involved in any of the foregoing aspects.
  • the communication device further includes a memory for storing necessary program instructions and data.
  • the communication device is a chip system, it may be composed of chips, or may include chips and other discrete devices.
  • the technical effects brought by any one of the design methods of the third aspect to the eighth aspect can be referred to the technical effects brought about by the different design methods in the first aspect or the second aspect, which will not be repeated here.
  • a communication system in a ninth aspect, includes the terminal device described in the first aspect and the network device described in the second aspect.
  • FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the application
  • FIG. 2 is a schematic structural diagram of a terminal device and a network device provided by an embodiment of the application;
  • FIG. 3 is a schematic diagram of another structure of a terminal device provided by an embodiment of the application.
  • FIG. 4 is a schematic diagram 1 of the flow of a method for reporting channel quality according to an embodiment of the application
  • FIG. 5 is the first schematic diagram of the first field occupied by the first index according to an embodiment of the application.
  • FIG. 6 is a second schematic diagram of the first field occupied by the first index according to an embodiment of the application.
  • FIG. 7 is a third schematic diagram of the first field occupied by the first index according to an embodiment of the application.
  • FIG. 8 is a fourth schematic diagram of the first field occupied by the first index according to an embodiment of the application.
  • FIG. 9 is a schematic diagram of the second flow of a method for reporting channel quality according to an embodiment of this application.
  • FIG. 10 is a schematic diagram of another structure of a terminal device provided by an embodiment of this application.
  • FIG. 11 is a schematic diagram of another structure of a network device provided by an embodiment of this application.
  • IoT is the "Internet of Things Connected”. It extends the user end of the Internet to any item and item, enabling information exchange and communication between any item and item. This communication method is also called machine type communications (MTC). Among them, the communication node is called IOT terminal or IOT device.
  • MTC machine type communications
  • Typical IoT applications include the Internet of Vehicles, smart communities, industrial detection and monitoring, smart meter reading, smart grids, smart agriculture, smart transportation, smart homes, and environmental monitoring.
  • IOT terminals in some scenarios are used in environments with poor coverage, such as electricity meters and water meters, which are usually installed indoors or even basements and other places with poor wireless network signals, coverage enhancement technologies are needed to solve them.
  • coverage enhancement technologies are needed to solve them.
  • the number of IOT terminals in some scenarios is much larger than the number of devices for human-to-human communication, that is to say, large-scale deployment is required, so it is required to be able to obtain and use IOT terminals at a very low cost.
  • IOT terminals because the data packets transmitted by the IOT terminal in some scenarios are very small and are not sensitive to delay, it is required to support a low-rate IOT terminal. Or, because in most cases, IOT terminals are powered by batteries, but at the same time in many scenarios, IOT terminals are required to be able to be used for more than ten years without changing the battery, which requires that IOT terminals can be used at a very low cost. Power consumption to work.
  • the 3rd generation partnership project (3GPP) of the Mobile Communication Standardization Organization passed a new research topic at the RAN#62 plenary meeting to study the support of extremely low complexity and low complexity in cellular networks.
  • the cost of the Internet of Things method, and the project was established as an NB-IoT topic at the RAN#69 meeting.
  • the quality of the wireless channel is constantly changing. For example, the terminal device moves from an area with better channel quality to an area with poor channel quality; or, if the terminal device moves on a street with tall buildings on both sides, it will move along the signal propagation direction. The channel quality on the street will increase, and the channel quality on the street perpendicular to the signal propagation direction will decrease.
  • the network equipment determines the scheduling strategy of the downlink transmission block. However, as the sender, the network equipment does not know the quality of the downlink channel. Assuming that the downlink channel quality is very good, the network equipment uses the downlink transmission block.
  • Quadrature phase shift keying quadrature phase shift keyin, QPSK
  • QAM quadrature amplitude modulation
  • 64QAM 64QAM
  • comparison of downlink transmission blocks carried by downlink channels If it is small, it will reduce the spectrum utilization and throughput; or, assuming that the channel quality is poor, the network equipment uses a higher-order modulation method for the downlink transmission block instead of QPSK, or the downlink transmission carried by the downlink If the block is relatively large, it will lead to excessive retransmissions, resulting in a waste of resources. In the above two cases, the network equipment does not make reasonable use of wireless resources.
  • the terminal device can feedback the quality of the downlink channel, that is, measure the quality of the downlink channel and report the CQI.
  • the quality measurement of the downlink channel by the terminal equipment occurs in two cycles T1 or T2.
  • T1 is a narrowband physical random access channel (NPRACH) before transmission.
  • the terminal equipment measures the reception of the narrowband reference signal Power (narrowband reference signal receiving power, NRSRP) estimates the period of coverage enhancement level.
  • T2 is the period from receiving a random access response (RAR) to the end device using a narrowband physical uplink shared channel, NPUSCH) The cycle of transmitting downlink channel quality.
  • the CQI reported by the terminal device is the minimum number of repetitions of the virtual NPDCCH measured by the terminal device that meets the bit error rate of 1%.
  • the parameters of the virtual NPDCCH used for downlink channel quality measurement or reporting may be as shown in Table 1:
  • NPDCCH supports two aggregation levels, one is aggregation level 1 and the other is aggregation level 2.
  • Aggregation level 1 includes one narrowband control channel element NCCE (narrowband control channel elements), and aggregation level 2 includes two NCCEs, which are located in the same subframe.
  • NCCE narrowband control channel elements
  • aggregation level 2 includes two NCCEs, which are located in the same subframe.
  • CQI-NPDCCH-NB CQI-NPDCCH-NB
  • CQI-NPDCCH-Short-NB CQI-NPDCCH-Short-NB
  • the reported value of CQI corresponds to "R max scaling”
  • R max is the maximum number of repetitions of NPDCCH configured by the higher layer
  • R max scaling refers to R max as a reference
  • the reported value is a fractional multiple or An integer multiple of R max .
  • Table 3 the corresponding relationship between the reported value and the scaling of R max may be as shown in Table 3:
  • the terminal device reports CQI through message 3 (Msg3) in the NPRACH process.
  • type 1 or type 2 is used to report CQI in Msg3 depends on the function of Msg3.
  • Msg3 is a radio resource control (radio resource control, RRC) connection resume request (RRC connection resume request), or an RRC connection request (RRC connection request), or a user plane RRC connection reestablishment request (RRC connection reestablishment request), or
  • RRC early data request RRC early data request
  • the COI is reported as type 1
  • Msg3 is the control plane RRC connection reestablishment request (RRC connection reestablishment request)
  • the CQI is reported as type 2.
  • At least one item (a) refers to any combination of these items, including any combination of a single item (a) or plural items (a).
  • at least one item (a) of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .
  • words such as “first” and “second” are used to distinguish the same items or similar items with substantially the same function and effect.
  • words such as “first” and “second” do not limit the quantity and order of execution, and words such as “first” and “second” do not limit the difference.
  • words such as “exemplary” or “for example” are used as examples, illustrations, or illustrations. Any embodiment or design solution described as “exemplary” or “for example” in the embodiments of the present application should not be construed as being more preferable or advantageous than other embodiments or design solutions.
  • words such as “exemplary” or “for example” are used to present related concepts in a specific manner to facilitate understanding.
  • LTE long term evolution
  • NB-IoT networks
  • LTE long term evolution
  • UMTS mobile Communication system
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • 5G fifth generation
  • the communication system 10 includes a network device 20 and one or more terminal devices 30 connected to the network device 20.
  • different terminal devices 30 can communicate with each other.
  • the terminal device determines the first index corresponding to the channel quality, and the first index is the physical downlink control channel and/or physical The number of repetitions of the downlink data channel is an index in the index set corresponding to the first number of repetitions; the terminal device sends the first index and indication information to the network device, the first index occupies the first field, and the indication information indicates the first The field is occupied by the index corresponding to the first number of repetitions.
  • the network device receives the first index and the indication information from the terminal device, determines according to the indication information that the first field is occupied by the index corresponding to the first number of repetitions, and determines that the index corresponding to the first number of repetitions is the first index.
  • the first field can be occupied by the repetition number of the physical downlink control channel or the index corresponding to the first repetition number
  • the indication information can indicate that the first field is occupied by the repetition number of the physical downlink control channel or the index corresponding to the first repetition number.
  • the channel quality can be fed back more accurately, so that the network device can more reasonably determine
  • the scheduling strategy of the downlink transport block since the first index occupies the first field that can be occupied by the repetition times of the physical downlink control channel, the first field occupied by the repetition times of the physical downlink control channel can be reused, thereby increasing
  • the indication information can indicate that the first field is occupied by the repetition number of the physical downlink control channel or the index corresponding to the first repetition number, backward compatibility is ensured, so that the network device can understand according to the instruction information
  • the content carried by the first field can avoid ambiguity in the understanding of the first field by the network device.
  • the network device 20 in the embodiment of the present application is a device that connects the terminal device 30 to a wireless network, and may be an evolved Node B (eNB or eNodeB) in LTE; or GSM or The base station (base Transceiver Station, BTS) in CDMA; or the base station (NodeB) in the WCDMA system; or the base station in the 5G network or the future evolving public land mobile network (PLMN), the broadband network service gateway ( Broadband network gateway (BNG), convergence switch or non-third generation partnership project (3rd generation partnership project, 3GPP) access equipment, etc., which are not specifically limited in the embodiments of this application.
  • the base stations in the embodiments of the present application may include various forms of base stations, such as macro base stations, micro base stations (also called small stations), relay stations, access points, etc., which are not specifically limited in the embodiments of the present application .
  • the terminal device 30 in the embodiment of the present application may be a device for implementing wireless communication functions, such as a terminal or a chip that can be used in a terminal.
  • the terminal may be a user equipment (UE), an access terminal, a terminal unit, a terminal station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, and wireless communication in an LTE network or a future evolved PLMN.
  • the access terminal can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices or wearable devices, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, industrial control (industrial) Wireless terminal in control), wireless terminal in self-driving, wireless terminal in remote medical, wireless terminal in smart grid, wireless terminal in transportation safety (transportation safety) Terminal, wireless terminal in smart city, wireless terminal in smart home, etc.
  • the terminal can be mobile or fixed.
  • the network device 20 and the terminal device 30 in the embodiment of the present application may also be referred to as a communication device, which may be a general-purpose device or a dedicated device, which is not specifically limited in the embodiment of the present application.
  • FIG. 2 it is a schematic structural diagram of the network device 20 and the terminal device 30 provided in this embodiment of the application.
  • the terminal device 30 includes at least one processor (in FIG. 2 exemplarily includes a processor 301 as an example for illustration) and at least one transceiver (in FIG. 2 exemplarily includes a transceiver 303 as an example for illustration) ).
  • the terminal device 30 may also include at least one memory (in FIG. 2 exemplarily includes a memory 302 for illustration), at least one output device (in FIG. 2 exemplarily includes an output device 304 as an example) For description) and at least one input device (in FIG. 2 exemplarily, an input device 305 is included as an example for description).
  • the processor 301, the memory 302, and the transceiver 303 are connected through a communication line.
  • the communication line may include a path to transmit information between the aforementioned components.
  • the processor 301 may be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the application Circuit.
  • the processor 301 may also include multiple CPUs, and the processor 301 may be a single-CPU (single-CPU) processor or a multi-core (multi-CPU) processor.
  • the processor here may refer to one or more devices, circuits, or processing cores for processing data (for example, computer program instructions).
  • the memory 302 may be a device having a storage function. For example, it can be read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types that can store information and instructions Dynamic storage devices can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM), or other optical disk storage, optical disc storage ( Including compact discs, laser discs, optical discs, digital universal discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program codes in the form of instructions or data structures and can be stored by a computer Any other media taken, but not limited to this.
  • the memory 302 may exist independently and is connected to the processor 301 through a communication line.
  • the memory 302 may also be integrated with the processor 301.
  • the memory 302 is used to store computer-executed instructions for executing the solution of the present application, and the processor 301 controls the execution.
  • the processor 301 is configured to execute computer-executable instructions stored in the memory 302, so as to implement the channel quality reporting method described in the embodiment of the present application.
  • the processor 301 may also perform processing-related functions in the channel quality reporting method provided in the following embodiments of the application, and the transceiver 303 is responsible for communicating with other devices or communication networks.
  • the embodiment of the application does not specifically limit this.
  • the computer execution instructions in the embodiments of the present application may also be referred to as application program codes or computer program codes, which are not specifically limited in the embodiments of the present application.
  • the transceiver 303 can use any device such as a transceiver to communicate with other devices or communication networks, such as Ethernet, radio access network (RAN), or wireless local area networks (WLAN) Wait.
  • the transceiver 303 includes a transmitter (transmitter, Tx) and a receiver (receiver, Rx).
  • the output device 304 communicates with the processor 301 and can display information in a variety of ways.
  • the output device 304 may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector (projector) Wait.
  • LCD liquid crystal display
  • LED light emitting diode
  • CRT cathode ray tube
  • projector projector
  • the input device 305 communicates with the processor 301 and can accept user input in various ways.
  • the input device 305 may be a mouse, a keyboard, a touch screen device, or a sensor device.
  • the network device 20 includes at least one processor (in FIG. 2 exemplarily includes a processor 201 for illustration), at least one transceiver (in FIG. 2 exemplarily includes a transceiver 203 as an example for illustration), and At least one network interface (in FIG. 2, one network interface 204 is included as an example for illustration).
  • the network device 20 may further include at least one memory (in FIG. 2 exemplarily, a memory 202 is included for illustration).
  • the processor 201, the memory 202, the transceiver 203 and the network interface 204 are connected through a communication line.
  • the network interface 204 is used to connect to the core network device through a link (for example, the S1 interface), or to connect to the network interface of other network devices through a wired or wireless link (for example, the X2 interface) (not shown in FIG. 2).
  • the application embodiment does not specifically limit this.
  • the processor 201, the memory 202, and the transceiver 203 reference may be made to the description of the processor 301, the memory 302, and the transceiver 303 in the terminal device 30, which will not be repeated here.
  • FIG. 3 is a specific structural form of the terminal device 30 provided in an embodiment of the application.
  • the functions of the processor 301 in FIG. 2 may be implemented by the processor 110 in FIG. 3.
  • the function of the transceiver 303 in FIG. 2 may be implemented by the antenna 1, antenna 2, mobile communication module 150, wireless communication module 160, etc. in FIG. 3.
  • antenna 1 and antenna 2 are used to transmit and receive electromagnetic wave signals.
  • Each antenna in the terminal device 30 can be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization.
  • antenna 1 can be multiplexed as a diversity antenna of a wireless local area network.
  • the antenna can be used in combination with a tuning switch.
  • the mobile communication module 150 can provide a wireless communication solution including 2G/3G/4G/5G and the like applied to the terminal device 30.
  • the mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier (LNA), etc.
  • the mobile communication module 150 can receive electromagnetic waves by the antenna 1, and perform processing such as filtering, amplifying and transmitting the received electromagnetic waves to the modem processor for demodulation.
  • the mobile communication module 150 can also amplify the signal modulated by the modem processor, and convert it into electromagnetic waves for radiation via the antenna 1.
  • at least part of the functional modules of the mobile communication module 150 may be provided in the processor 110.
  • at least part of the functional modules of the mobile communication module 150 and at least part of the modules of the processor 110 may be provided in the same device.
  • the wireless communication module 160 can provide applications on the terminal device 30 including wireless local area networks (WLAN) (such as Wi-Fi networks), Bluetooth (bluetooth, BT), global navigation satellite system (global navigation satellite system, GNSS), frequency modulation (FM), near field communication (NFC), infrared technology (infrared, IR) and other wireless communication solutions.
  • WLAN wireless local area networks
  • Bluetooth blue, BT
  • global navigation satellite system global navigation satellite system
  • FM frequency modulation
  • NFC near field communication
  • IR infrared technology
  • the wireless communication module 160 may be one or more devices integrating at least one communication processing module.
  • the wireless communication module 160 receives electromagnetic waves via the antenna 2, frequency modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 110.
  • the wireless communication module 160 may also receive a signal to be sent from the processor 110, perform frequency modulation, amplify it, and convert it into electromagnetic waves for radiation via the antenna 2.
  • the wireless communication module 160 can provide a solution for NFC wireless communication applied to the terminal device 30, which means that the first device includes an NFC chip.
  • the NFC chip can improve the NFC wireless communication function.
  • the wireless communication module 160 can provide a solution for NFC wireless communication applied to the terminal device 30, which means that the first device includes an electronic tag (such as radio frequency identification (RFID) tags). ).
  • RFID radio frequency identification
  • the antenna 1 of the terminal device 30 is coupled with the mobile communication module 150, and the antenna 2 is coupled with the wireless communication module 160, so that the terminal device 30 can communicate with the network and other devices through wireless communication technology.
  • the wireless communication technologies may include global system for mobile communications (GSM), general packet radio service (GPRS), code division multiple access (CDMA), broadband Code division multiple access (wideband code division multiple access, WCDMA), time-division code division multiple access (TD-SCDMA), long term evolution (LTE), BT, GNSS, WLAN, NFC , FM, or IR technology, etc.
  • the GNSS may include global positioning system (GPS), global navigation satellite system (GLONASS), Beidou navigation satellite system (BDS), quasi-zenith satellite system (quasi -zenith satellite system, QZSS) or satellite-based augmentation systems (SBAS).
  • GPS global positioning system
  • GLONASS global navigation satellite system
  • BDS Beidou navigation satellite system
  • QZSS quasi-zenith satellite system
  • SBAS satellite-based augmentation systems
  • the function of the memory 302 in FIG. 2 may be implemented by an external memory (such as a Micro SD card) connected to the internal memory 121 or the external memory interface 120 in FIG. 3.
  • an external memory such as a Micro SD card
  • the function of the output device 304 in FIG. 2 may be implemented through the display screen 194 in FIG. 3.
  • the display screen 194 is used to display images, videos, and so on.
  • the display screen 194 includes a display panel.
  • the function of the input device 305 in FIG. 2 may be implemented by a mouse, a keyboard, a touch screen device, or the sensor module 180 in FIG. 3.
  • the sensor module 180 may include, for example, a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, and a fingerprint sensor 180H.
  • the terminal device 30 may also include an audio module 170, a camera 193, an indicator 192, a motor 191, a button 190, a SIM card interface 195, a USB interface 130, a charging management module 140, One or more of the power management module 141 and the battery 142, where the audio module 170 can be connected to a speaker 170A (also called a “speaker”), a receiver 170B (also called a “handset”), a microphone 170C (also called a “microphone”, “Microphone”) or the earphone interface 170D, etc., which are not specifically limited in the embodiment of the present application.
  • a speaker 170A also called a “speaker”
  • a receiver 170B also called a “handset”
  • a microphone 170C also called a “microphone”, "Microphone”
  • the earphone interface 170D etc.
  • the structure shown in FIG. 3 does not constitute a specific limitation on the terminal device 30.
  • the terminal device 30 may include more or fewer components than shown in the figure, or combine certain components, or split certain components, or arrange different components.
  • the illustrated components can be implemented in hardware, software, or a combination of software and hardware.
  • the physical downlink control channel (PDCCH) in this application can be NPDCCH
  • the physical downlink share channel (PDSCH) can be a physical downlink data channel or NPDSCH
  • NPDCCH can be It is a virtual NPDCCH or an NPDCCH sent by a network device.
  • the physical downlink data channel can be a virtual physical downlink data channel or a physical downlink data channel sent by a network device.
  • NPDSCH can be a virtual NPDSCH or a network
  • the NPDSCH sent by the device is described here in a unified manner, and details are not described in the following embodiments.
  • a method for reporting channel quality includes the following steps:
  • the terminal device determines a first index corresponding to the channel quality.
  • the first index is an index in the index set corresponding to the number of repetitions of the PDCCH and/or PDSCH when the number of repetitions is the first number of repetitions, and the first index can more accurately reflect the channel quality of the PDCCH and/or PDSCH measured by the terminal device It can also be understood that the first index can more accurately reflect the ability of the terminal device to demodulate data under the measured channel quality.
  • the first index may be the first MCS index, or the reported value corresponding to the first MCS index, or may also be the first CQI index, or the reported value corresponding to the first CQI index.
  • the terminal device may measure the channel quality of the PDCCH and/or PDSCH.
  • the PDCCH and/or PDSCH repetition number is determined to be the first repetition number according to the measured channel quality
  • the measurement can be determined in the following two ways
  • Manner 1 When the terminal device determines that the number of repetitions of the PDCCH and/or PDSCH is the first number of repetitions, it further determines the first index from the index set corresponding to the first number of repetitions according to the measured channel quality.
  • the first MCS index is determined according to the measured channel quality, the preset rule, and the reference MCS index. It should be noted that the first index determined by the terminal device in the second manner is the first MCS index.
  • the reference MCS index may be the MCS index corresponding to the RAR indicated in the downlink control information (DCI) sent by the network device for scheduling the RAR, and the format of the DCI may be format 1; or, the reference MCS The index may also be the MCS index corresponding to Msg3 indicated in the scheduling information for scheduling Msg3 in the RAR.
  • DCI downlink control information
  • the second method may specifically include: the terminal device determines the target MCS index according to the measured channel quality, the target MCS index is an index in the index set corresponding to the first number of repetitions, and the target MCS index can more accurately reflect the measurement.
  • the foregoing preset rule may include dividing the reference MCS index by a first value, and multiplying the reference MCS index by a second value, the first value includes one or more positive integers, and the second value includes one or more For a positive integer greater than 1, the first value and the second value may be the same or different.
  • the reference MCS index cannot divide the first value, the result of dividing the reference MCS index by the first value is Indicates rounding down.
  • the foregoing preset rule and the candidate index obtained after scaling the reference MCS according to the preset rule may be as shown in Table 4:
  • NOTE1 includes: if the reference MCS index is less than X2 ⁇ M1, the candidate index obtained by dividing the reference MCS index by M1 is set to X2;
  • NOTE3 includes: if the reference MCS index is greater than X1/M2, the candidate index obtained by multiplying the reference MCS index by M2 is set to X1;
  • NOTE2 includes : If the reference MCS index is equal to X2, set the candidate index to X2+1.
  • the candidate index set includes ⁇ 1, 2, 6 ⁇ , because the candidate index The candidate index in the set that is closest to the target MCS index 5 and larger than the target MCS index is 6, so the first index may be 6; or, because the candidate index in the candidate index set closest to the target MCS index 5 is smaller than the target MCS index Is 2, so the first index can also be 2.
  • the reference MCS index determined according to the measured channel quality is 10
  • the candidate index after the terminal device scales the reference MCS index according to the preset rule is shown in Table 6, where the reference MCS index is greater than X1/M2, which is 5 Greater than 13/3, so according to NOTE3, when the reference MCS index is multiplied by 3, the candidate index is set to 13, so that the candidate index set includes ⁇ 2, 5, 13 ⁇ , because the candidate index set is closest to the target MCS index 10
  • the candidate index greater than the target MCS index is 13, so the first index can be 13; or, because the candidate index in the candidate index set that is closest to the target MCS index 10 and smaller than the target MCS index is 5, the first index can also be Is 5.
  • each preset rule may also correspond to a reported value.
  • the terminal device determines the first MCS index, it may also follow the preset rule corresponding to the first MCS index.
  • the reported value corresponding to the first MCS index is determined, that is, the first index may also be the reported value corresponding to the first MCS index.
  • the reported value corresponding to the first MCS index 6 is the candidate MCS-3, or the first MCS index 2
  • the corresponding reported value is candidateMCS-2.
  • Reported value Preset rules candidateMCS-1 Refer to MCS index divided by M1 candidateMCS-2 Refer to MCS Index candidateMCS-3 M2 multiplied by the reference MCS index
  • Candidate index candidateMCS-1 Refer to MCS index divided by 2 1 candidateMCS-2 Refer to MCS Index 2 candidateMCS-3 3 times the reference MCS index 6
  • the first value includes 1 and M1, and the second value includes M2 as an example to illustrate the preset rule. It is understandable that the first value and the second value may also include other values. Or multiple values, which are not specifically limited in the embodiment of the present application.
  • the first value may include 1 and M1
  • the second value may include M2 and M3, where the value of M3 is different from the value of M2; or as shown in Table 10 below, the first value The value may include 1, M1 and M4, and the second value may include M2 and M3, where the value of M1 is different from the value of M4, and the value of M3 is different from the value of M2.
  • Preset rules Refer to MCS index divided by M1 Refer to MCS Index M2 multiplied by the reference MCS index
  • Preset rules Refer to MCS index divided by M1 Refer to MCS index divided by M4 Refer to MCS Index M2 multiplied by the reference MCS index M3 multiplied by the reference MCS index
  • the terminal device first determines the first number of repetitions and then determines the first index as an example for description. It can be understood that the terminal device may also determine the first number of repetitions and the first index at the same time after measuring the channel quality. Alternatively, the first index may be determined first, and then the first repetition count may be determined, and the corresponding relationship between the first repetition count and the first index may be established, which is not specifically limited in this embodiment of the application.
  • the first index determined by the terminal device may be used to indicate one or more of the following: data block size (transport block size, TBS) carried by PDSCH, index of data block size carried by PDSCH, data block carried by PDSCH.
  • the modulation method of the PDSCH the index of the modulation method of the data block carried by the PDSCH, the index of the aggregation level of the PDCCH, the index of the aggregation level of the PDCCH, the number of repetitions of the PDCCH, the index of the number of repetitions of the PDCCH, the number of repetitions of the PDSCH, the index of the number of repetitions of the PDSCH .
  • the first index indicates the index of the data block size carried by the PDSCH
  • the terminal device determines the first index through the above-mentioned method 1
  • the first index can be selected from 14 types. value.
  • the first index is the first MCS index, or the first index is the reported value corresponding to the first MCS index
  • the value of the first MCS index and the reported value corresponding to the first MCS index may be as follows Table 11 shows:
  • the index of the data block size carried by the PDSCH indicated by the first MCS index may be as shown in Table 12. In this case , It can be considered that the index of the size of the data block carried by the PDSCH is the same as the first MCS index.
  • the TBS index indicated by the first MCS index in Table 12 is only an exemplary description of the embodiment of the present application. In actual applications, the TBS index indicated by the first MCS index in Table 12 may have other The value of is not specifically limited in the embodiment of this application.
  • the terminal device determines the first index through the above method 1, the first index is the first MCS index, Or the first index is the reported value corresponding to the first MCS index, the value of the first MCS index and the reported value corresponding to the first MCS index may be as shown in Table 13:
  • candidateMCS-L 11 candidateMCS-M 12 candidateMCS-N 13 candidateMCS-P 14 candidateMCS-Q 15
  • the index of the data block size carried by the PDSCH indicated by the first MCS index and the modulation mode of the data block carried by the PDSCH may be As shown in Table 14:
  • the modulation mode and TBS index indicated by the first MCS index in Table 14 are only an exemplary description of the embodiment of the present application. In practical applications, the modulation mode and TBS index indicated by the first MCS index in Table 14 The TBS index may also have other combinations, which are not specifically limited in the embodiment of the present application.
  • the first index indicates the index of the size of the data block carried by the PDSCH, the modulation method of the data block carried by the PDSCH, and the aggregation level of the PDCCH
  • the terminal device determines the first index through the above method 1
  • the first index Is the first MCS index, or the first index is the reported value corresponding to the first MCS.
  • the first MCS index is shown in Table 13
  • the first index indicates the PDSCH bearer
  • the index of the size of the data block, the modulation mode of the data block carried by the PDSCH, and the aggregation level of the PDCCH can be as shown in Table 15:
  • the terminal device determines the first index through the above method 1, the first index Is the first MCS index, or the first index is the reported value corresponding to the first MCS.
  • the first MCS index is shown in Table 13
  • the first index indicates the PDSCH bearer
  • the index of the data block size, the modulation mode of the data block carried by the PDSCH, and the number of repetitions of the PDSCH can be as shown in Table 16:
  • the above example only uses the first index to indicate some parameters as an example.
  • the first index is used to indicate other parameters or combinations of other parameters, it can also be indicated in a similar manner to the above, and will not be described here. Repeat.
  • the foregoing embodiment is described by assuming that there are 14 or 16 values for the first index. It is understandable that in practical applications, the first index may also have more possible values, each value One or more of the above parameters may also be indicated, which is not specifically limited in the embodiment of the present application. Exemplarily, as shown in Table 17, the first index may have 32 possible values, and each value may indicate a different TBS index and modulation mode.
  • the first number of repetitions determined by the terminal device according to the measured PDCCH and/or PDSCH channel quality is 1.
  • the index set corresponding to the first number of repetitions 1 includes Multiple indexes. It is understandable that the first repetition number determined by the terminal device according to the measured channel quality of the PDCCH and/or PDSCH may also be other values, which is not specifically limited in the embodiment of the present application.
  • the terminal device sends the first index and instruction information to the network device.
  • the network device receives the first index and instruction information from the terminal device.
  • the first index occupies the first field, and the indication information indicates that the first field is occupied by the index corresponding to the first number of repetitions.
  • the first field can be occupied by the number of repetitions of the PDCCH or the index corresponding to the first number of repetitions, and the indication information can indicate that the first field is occupied by the number of repetitions of the PDCCH or the index corresponding to the first number of repetitions.
  • the terminal device may carry the first index and indication information in a message and send it to the network device.
  • the terminal device may send a first message to the network device, and the first message includes the first index and indication information.
  • the first index occupies the first field included in the first message.
  • the network device receives the first message from the terminal device.
  • the network device may carry the first index in the first field of the above-mentioned first message and send it to the network device, and carry the instruction information in the second message and send it to the network device.
  • the terminal device sends the second message first and then sends the first message.
  • the network device receives the first message and the second message.
  • the foregoing first message may be Msg3 in the random access process
  • the first field may be a field for the number of repetitions of the PDCCH in the prior art, that is, the first field may be the number of repetitions of the PDCCH reported in the Msg3. 4 bits or 2 bits.
  • the length of the first field is different according to the difference of Msg3.
  • Msg3 is an RRC connection resume request (RRCconnectionresumerequest), or an RRC connection request (RRC connection request), or a user plane RRC connection reestablishment request (RRC connectionreestablishment request)
  • the existing Msg3 uses 4 bits to report the repetition of the PDCCH
  • the first field is 4 bits; when Msg3 is the RRC connection reestablishment request of the control plane, 2 bits are used in the existing Msg3 to report the PDCCH repetition times.
  • the first The field is 2 bits.
  • the terminal device carries the first index and indication information in the first message, and when the first message is Msg3, the indication information may be carried in 1 free bit in Msg3, and when the value of the 1 bit is 1.
  • the indication information indicates that the first field of Msg3 is occupied by the index corresponding to the first repetition count
  • the indication information indicates that the first field of Msg3 is occupied by the repetition count of the PDCCH.
  • the indication information indicates that the first field of Msg3 is occupied by the index corresponding to the first number of repetitions
  • the indication information indicates the first field of Msg3 Occupied by the number of repetitions of the PDCCH.
  • the terminal device carries the first index in the first message, and when the instruction information is carried in the second message, the instruction information may be a sequence, and the terminal device may use two different sequences to indicate, for example, sequence 1 may It indicates that the first field is occupied by the index corresponding to the first repetition count, and sequence 2 indicates that the first field is occupied by the repetition count of the PDCCH. Alternatively, sequence 2 may indicate that the first field is occupied by the index corresponding to the first repetition count, and sequence 1 indicates that the first field is occupied by the repetition count of the PDCCH.
  • the first field occupied by the first index may be understood as all the first fields are occupied by the first index.
  • the first field is 4 bits of the existing number of repetitions of the PDCCH reported in Msg3.
  • Msg3 includes 32 bits, of which 4 bits numbered 17-20 are used to report the number of repetitions of the PDCCH, that is, the first field Including 4 bits numbered 17-20 as an example, if the first index determined by the terminal device is 4 bits, as shown in Figure 5, 4 bits of the first index can occupy all 4 bits numbered 17-20 Or, exemplarily, if the first index determined by the terminal device is 5 bits, as shown in Figure 6, the first 4 bits or the last 4 bits of the 5 bits can occupy all 4 bits numbered 17-20, The remaining 1 bit among the 5 bits can occupy the first free bit (bit number 29) in Msg3.
  • the idle bit occupied by the indication information may be located at the first idle bit (bit number 30) after the idle bit occupied by the remaining 1 bit, or the terminal device may also pass outside Msg3
  • the remaining 1 bit of the 5 bits is reported in other messages, which is not specifically limited in the embodiment of the present application.
  • the occupation of the first field by the first index may also be understood as some bits in the first field are occupied by the first index.
  • the first field is 4 bits of the existing number of repetitions of the PDCCH reported in Msg3.
  • Msg3 includes 32 bits, of which 4 bits numbered 17-20 are used to report the number of repetitions of the PDCCH, that is, the first field Including 4 bits numbered 17-20 as an example, if the first index determined by the terminal device is 4 bits, as shown in Figure 7, the first 2 bits or the last two bits of the 4 bits can occupy the number in Msg3 Consecutive 2 bits of the 4 bits 17-20, for example, occupy two bits numbered 19 and 20, the remaining 2 bits of the 4 bits can occupy the first two free bits in Msg3 (numbered Two bits 29 and 30).
  • the idle bit occupied by the indication information can be located at the first idle bit (bit numbered 31) after the idle bit occupied by the remaining 2 bits, or the terminal device can also pass a message other than Msg3 Other messages report the remaining 2 bits of the 4 bits; or, for example, if the first index determined by the terminal device is 2 bits (for example, the first index determined according to the second method in step S401), as shown in FIG. 8 It is shown that the 2 bits can occupy two consecutive bits of the 4 bits numbered 17-20 in Msg3, for example, two bits numbered 17 and 18 can be occupied.
  • the first field is 2 bits of the number of repetitions of the existing PDCCH reported in Msg3
  • the situation that the first index occupies the first field is similar to the above-mentioned first field being the repetition of the existing PDCCH reported in Msg3
  • the relevant description can refer to the above-mentioned embodiment, and it will not be repeated here.
  • the first field occupied by the first index in the foregoing embodiment is the bit used to report the number of repetitions of the PDCCH in the prior art.
  • the terminal device may only report the number of repetitions of the PDCCH and/or PDSCH. Index without reporting the number of repetitions of the PDCCH.
  • the first field may also be other fields, that is, the terminal device does not reuse the bits that report the number of repetitions of the PDCCH in the prior art when sending the first index, that is, the terminal device reports both the number of repetitions of the PDCCH and the PDCCH. And/or an index corresponding to the number of repetitions of the PDSCH.
  • the first message may also be other messages except Msg3, that is, the first field may be a field in other messages except Msg3.
  • the network device determines, according to the instruction information, that the first field is occupied by the index corresponding to the first repetition count, and the network device determines that the index corresponding to the first repetition count is the first index.
  • the terminal device when the terminal device carries the first index in the first message, and carries the indication information in the first message or the second message, after the network device receives and decodes the first message, it does not determine the identity of the first message.
  • the first field is occupied by the PDCCH repetition count or the index corresponding to the first repetition count. Therefore, the network device can determine according to the indication information whether the first field is occupied by the PDCCH repetition count or the index corresponding to the first repetition count.
  • the network device determines according to the indication information that the first field is occupied by the index corresponding to the first repetition count, it may further determine that the index corresponding to the first repetition count occupying the first field is the first index.
  • the scheduling strategy of the downlink data block may be determined according to the first index.
  • the channel quality reporting method Based on the channel quality reporting method provided in the embodiments of the present application, on the one hand, since the terminal device reports the first index in the index set corresponding to the first repetition number, compared to reporting the first repetition number, the channel quality can be fed back more accurately. This allows the network equipment to more reasonably determine the scheduling strategy of the downlink transport block; on the other hand, since the first index occupies the first field that can be occupied by the repetition times of the PDCCH, the first field occupied by the repetition times of the PDCCH can be reused, Therefore, resource utilization is improved; on the other hand, because the indication information can indicate that the first field is occupied by the PDCCH repetition number or the index corresponding to the first repetition number, backward compatibility is ensured, so that the network device can understand the first field according to the instruction information. The content carried by one field can avoid ambiguity in the understanding of the first field by the network device.
  • the actions of the network device in the above steps S401 to S403 may be called by the processor 201 in the network device 20 shown in FIG. 2 to call the application code stored in the memory 202 to instruct the network device to execute.
  • the action of the terminal device may be executed by the processor 301 in the terminal device 30 shown in FIG. 2 calling the application code stored in the memory 302 to instruct the network device to execute, and this embodiment does not impose any limitation on this.
  • the number of repetitions of the DCI indicated in the DCI for scheduling the RAR or the number of repetitions of the RAR is the second number of repetitions or the number of repetitions of Msg3 indicated in the RAR
  • the second number of repetitions the second number of repetitions and the first number of repetitions may be the same or different
  • another method for reporting channel quality includes the following steps:
  • the terminal device determines a first index corresponding to the channel quality.
  • the first index is an index in the index set corresponding to the number of repetitions of the PDCCH and/or PDSCH when the number of repetitions is the first number of repetitions, and the first index can more accurately reflect the PDCCH and/or PDSCH channels measured by the terminal device Quality can also be understood as the first index can more accurately reflect the ability of the terminal device to demodulate data under the measured channel quality.
  • the above step S401 please refer to the above step S401, which will not be repeated here.
  • the terminal device sends the first index to the network device.
  • the network device receives the first index from the terminal device.
  • the first index occupies the first field, and the first field can be occupied by the number of repetitions of the PDCCH or the index corresponding to the first number of repetitions.
  • the network device since the network device sends the DCI for scheduling RAR to the terminal device and sends the RAR to the terminal device, the network device can also determine the number of repetitions of the DCI indicated in the DCI of the scheduled RAR or the number of repetitions of the RAR or the Msg3 indicated in the RAR. Therefore, when the network device determines that the repetition number of DCI or the repetition number of RAR or the repetition number of Msg3 is the second repetition number, the first field can be assumed to be occupied by the index corresponding to the first repetition number, so that the terminal The device does not need to send instruction information to indicate to the network device that the first field is occupied by the index corresponding to the first number of repetitions.
  • the terminal device may carry the first index in the first message and send it to the network device, where the first index occupies the first field included in the first message.
  • the network device receives the first message from the terminal device.
  • the first message may be Msg3 in the random access process
  • the first field may be a field for the number of repetitions of the PDCCH in the prior art, that is, the first field may be the number of repetitions of the PDCCH reported in Msg3. 4 bits or 2 bits.
  • Msg3 can also be an RRC early data request (RRC early data request).
  • RRC early data request RRC early data request
  • the existing Msg3 also uses 4 bits to report the number of repetitions of the PDCCH, that is, the number of repetitions of the first field.
  • the length is 4 bits.
  • the first field occupied by the first index can be understood as the first field is all occupied by the first index, or it can also be understood as part of the bits in the first field are occupied by the first index.
  • the first field occupied by the first index can be understood as the first field is all occupied by the first index, or it can also be understood as part of the bits in the first field are occupied by the first index.
  • I won’t repeat it here.
  • the first field occupied by the first index in the foregoing embodiment is the bit used to report the number of repetitions of the PDCCH in the prior art.
  • the terminal device may only report the number of repetitions of the PDCCH and/or PDSCH. Index without reporting the number of repetitions of the PDCCH.
  • the first field may also be other fields, that is, the terminal device does not reuse the bits that report the number of repetitions of the PDCCH in the prior art when sending the first index, that is, the terminal device reports both the number of repetitions of the PDCCH and the PDCCH. And/or an index corresponding to the number of repetitions of the PDSCH.
  • the first message may also be other messages except Msg3, that is, the first field may be a field in other messages except Msg3.
  • the channel quality reporting method Based on the channel quality reporting method provided in the embodiments of the present application, on the one hand, since the terminal device reports the first index in the index set corresponding to the first repetition number, compared to reporting the first repetition number, the channel quality can be fed back more accurately. This allows the network equipment to more reasonably determine the scheduling strategy of the downlink transport block; on the other hand, since the first index occupies the first field that can be occupied by the repetition times of the PDCCH, the first field occupied by the repetition times of the PDCCH can be reused, thereby Improved resource utilization; on the other hand, because the terminal equipment and network equipment in the RAR DCI indicated the number of repetitions of DCI or the number of repetitions of RAR or the number of repetitions of Msg3 is the second number of repetitions, transmit the corresponding Index, thus ensuring backward compatibility, so that the network device can understand the content carried in the first field according to the repetition number of the DCI or the repetition number of the RAR or the repetition number of the Msg3, thereby avoiding
  • the actions of the network device in the above steps S901 to S902 may be called by the processor 201 in the network device 20 shown in FIG. 2 to call the application program code stored in the memory 202 to instruct the network device to execute.
  • the action of the terminal device may be executed by the processor 301 in the terminal device 30 shown in FIG. 2 calling the application program code stored in the memory 302 to instruct the network device to execute, and this embodiment does not impose any limitation on this.
  • the methods and/or steps implemented by terminal devices can also be implemented by components (such as chips or circuits) that can be used in terminal devices, and the methods and/or steps implemented by network devices can also It can also be implemented by components that can be used in network devices.
  • an embodiment of the present application also provides a communication device, which is used to implement the foregoing various methods.
  • the communication device may be the terminal device in the foregoing method embodiment, or a device including the foregoing terminal device, or a component that can be used in the terminal device; or, the communication device may be the network device in the foregoing method embodiment, or include the foregoing A device of a network device, or a component that can be used in a network device.
  • the communication device includes hardware structures and/or software modules corresponding to each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the embodiments of the present application may divide the communication device into functional modules according to the foregoing method embodiments.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • FIG. 10 shows a schematic structural diagram of a terminal device 100.
  • the terminal device 100 includes a processing module 1001 and a transceiver module 1002.
  • the transceiver module 1002 may also be referred to as a transceiver unit to implement sending and/or receiving functions, for example, it may be a transceiver circuit, transceiver, transceiver or communication interface.
  • the processing module 1001 is configured to determine a first index corresponding to the channel quality, where the first index is an index in the corresponding index set when the repetition number of the physical downlink control channel and/or the physical downlink data channel is the first repetition number Transceiving module 1002, configured to send a first index and indication information to the network device, the first index occupies a first field, the indication information indicates that the first field is occupied by the index corresponding to the first number of repetitions, the first The field can be occupied by the number of repetitions of the physical downlink control channel or the index corresponding to the first number of repetitions, and the indication information can indicate the number of repetitions of the physical downlink control channel or the index corresponding to the first number of repetitions. Occupied.
  • the processing module 1001 is configured to determine the first index corresponding to the channel quality, and includes: a processing module 1001, configured to determine the channel quality, preset rules, and Refer to the MCS index to determine the first MCS index corresponding to the channel quality.
  • the transceiver module 1002 is configured to send a first index and indication information to a network device, the first index occupies a first field, and includes: a transceiver module 1002, configured to send a first message to the network device, the first message The first index and the indication information are included, and the first index occupies the first field included in the first message.
  • the terminal device 100 is presented in the form of dividing various functional modules in an integrated manner.
  • the "module” here can refer to a specific ASIC, circuit, processor and memory that executes one or more software or firmware programs, integrated logic circuit, and/or other devices that can provide the above-mentioned functions.
  • the terminal device 100 may take the form of the terminal device 30 shown in FIG. 2.
  • the processor 301 in the terminal device 30 shown in FIG. 2 may invoke the computer execution instruction stored in the memory 302 to make the terminal device 30 execute the channel quality reporting method in the foregoing method embodiment.
  • the functions/implementation process of the processing module 1001 and the transceiver module 1002 in FIG. 10 can be implemented by the processor 301 in the terminal device 30 shown in FIG. 2 calling the computer execution instructions stored in the memory 302.
  • the function/implementation process of the processing module 1001 in FIG. 10 can be implemented by the processor 301 in the terminal device 30 shown in FIG. 2 calling a computer execution instruction stored in the memory 302, and the function of the transceiver module 1002 in FIG. /The implementation process can be implemented by the transceiver 303 in the terminal device 30 shown in FIG. 2.
  • the terminal device 100 provided in this embodiment can perform the above-mentioned channel quality reporting method, the technical effects that can be obtained can refer to the above-mentioned method embodiment, and will not be repeated here.
  • FIG. 11 shows a schematic structural diagram of a network device 110.
  • the network device 110 includes a processing module 1101 and a transceiver module 1102.
  • the transceiver module 1102 may also be referred to as a transceiver unit to implement sending and/or receiving functions, and may be, for example, a transceiver circuit, transceiver, transceiver or communication interface.
  • the transceiver module 1102 is configured to receive a first index and indication information from a terminal device, where the first index is the corresponding index set when the repetition number of the physical downlink control channel and/or the physical downlink data channel is the first repetition number
  • the processing module 1101 is configured to determine according to the indication information that the first field is occupied by the index corresponding to the first repetition count, and the processing module 1101 is configured to determine that the index corresponding to the first repetition count is the first Index, the first field can be occupied by the number of repetitions of the physical downlink control channel or the index corresponding to the first number of repetitions, and the indication information can indicate that the first field is used by the number of repetitions of the physical downlink control channel or the first The index corresponding to the number of repetitions is occupied.
  • the transceiver module 1102 is configured to receive the first index and indication information from the terminal device, and includes: the transceiver module 1102 is configured to receive a first message from the terminal device, the first message including the first index and the Indicating information, the first index occupies the first field included in the first message.
  • the network device 110 is presented in the form of dividing various functional modules in an integrated manner.
  • the "module” here can refer to a specific ASIC, circuit, processor and memory that executes one or more software or firmware programs, integrated logic circuit, and/or other devices that can provide the above-mentioned functions.
  • the network device 110 may take the form of the network device 20 shown in FIG. 2.
  • the processor 201 in the network device 20 shown in FIG. 2 may invoke the computer execution instructions stored in the memory 202 to make the network device 20 execute the channel quality reporting method in the foregoing method embodiment.
  • the functions/implementation process of the processing module 1101 and the transceiver module 1102 in FIG. 11 may be implemented by the processor 201 in the network device 20 shown in FIG. 2 calling the computer execution instructions stored in the memory 202.
  • the function/implementation process of the processing module 1101 in FIG. 11 can be implemented by the processor 201 in the network device 20 shown in FIG. 2 calling a computer execution instruction stored in the memory 202, and the function of the transceiver module 1102 in FIG. 11 /The implementation process can be implemented by the transceiver 203 in the network device 20 shown in FIG. 2.
  • the network device 110 provided in this embodiment can perform the above-mentioned channel quality reporting method, the technical effects that can be obtained can refer to the above-mentioned method embodiment, which will not be repeated here.
  • an embodiment of the present application further provides a communication device (for example, the communication device may be a chip or a chip system), and the communication device includes a processor for implementing the method in any of the foregoing method embodiments.
  • the communication device further includes a memory.
  • the memory is used to store necessary program instructions and data, and the processor can call the program code stored in the memory to instruct the communication device to execute the method in any of the foregoing method embodiments.
  • the memory may not be in the communication device.
  • the communication device is a chip system, it may be composed of a chip, or may include a chip and other discrete devices, which is not specifically limited in the embodiment of the present application.
  • the computer may be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • a software program it may be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or may include one or more data storage devices such as servers and data centers that can be integrated with the medium.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).
  • the computer may include the aforementioned device.

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne, selon des modes de réalisation, un procédé, un dispositif et un système de rapport de qualité de canal. La qualité de canal peut être renvoyée avec précision, et le taux d'utilisation des ressources peut être amélioré. Ledit procédé comprend les étapes suivantes : un dispositif terminal détermine un premier indice correspondant à une qualité de canal, et envoie le premier indice et des informations d'indication à un dispositif de réseau, le premier indice occupant un premier champ, le premier indice étant un indice d'un ensemble d'indices correspondant quand le nombre de répétitions d'un canal de commande de liaison descendante physique et/ou d'un canal de données de liaison descendante physique est un premier nombre de répétitions, et les informations d'indication indiquant que le premier champ est occupé par l'indice correspondant au premier nombre de répétitions ; et le dispositif de réseau détermine, en fonction des informations d'indication, que le premier champ est occupé par l'indice correspondant au premier nombre de répétitions, et détermine que l'indice correspondant au premier nombre de répétitions est le premier indice. Le premier champ peut être occupé par le nombre de répétitions du canal de commande de liaison descendante physique ou par l'indice correspondant au premier nombre de répétitions ; et les informations d'indication peuvent indiquer que le premier champ est occupé par le nombre de répétitions du canal de commande de liaison descendante physique ou par l'indice correspondant au premier nombre de répétitions.
PCT/CN2019/096376 2019-07-17 2019-07-17 Procédé, dispositif et système de rapport de qualité de canal WO2021007809A1 (fr)

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EP19937915.7A EP3993297A4 (fr) 2019-07-17 2019-07-17 Procédé, dispositif et système de rapport de qualité de canal
MX2022000622A MX2022000622A (es) 2019-07-17 2019-07-17 Método, aparato y sistema de generación de informes de calidad de canal.
PCT/CN2019/096376 WO2021007809A1 (fr) 2019-07-17 2019-07-17 Procédé, dispositif et système de rapport de qualité de canal
CN201980098378.0A CN114097187B (zh) 2019-07-17 2019-07-17 信道质量上报方法、装置及系统
US17/576,602 US20220141828A1 (en) 2019-07-17 2022-01-14 Channel quality reporting method, apparatus, and system

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MX2022000622A (es) 2022-05-19
US20220141828A1 (en) 2022-05-05
CN114097187B (zh) 2023-07-21
CN114097187A (zh) 2022-02-25
EP3993297A1 (fr) 2022-05-04

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